Title:
POLYCARBONATE RESIN COMPOSITION FOR OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2020/110431
Kind Code:
A1
Abstract:
Provided is a polycarbonate resin composition which is for an optical member, has excellent compatibility and a good color, and generates very little gas during molding. This polycarbonate resin composition for an optical member is characterized by containing, with respect to 100 parts by mass of an aromatic polycarbonate resin (A): 0.1-3 parts by mass of a compound (B) in which a polyoxytetramethylene glycol-based polymer (B1) is bonded with an alicyclic diol (B2); and 0.005-0.4 parts by mass of a phosphorus stabilizer (C), wherein the compound (B) has 20 mass% or less of the alicyclic diol (B2) component, and the mass ratio of an oxytetramethylene glycol unit in a component excluding the alicyclic diol (B2) component is 55-80 mass%, and the number average molecular weight of the component (B) is 1000-2400.
Inventors:
KUROKAWA HARUHIKO (JP)
Application Number:
PCT/JP2019/036282
Publication Date:
June 04, 2020
Filing Date:
September 17, 2019
Export Citation:
Assignee:
MITSUBISHI ENG PLASTICS CORP (JP)
International Classes:
C08L69/00; C08K5/1515; C08K5/1525; C08K5/51; C08L71/02; F21S2/00; F21S41/24; G02B1/04; G02F1/13357; F21Y101/00; F21Y103/00; F21Y115/10; F21Y115/15
Domestic Patent References:
| WO2018173616A1 | 2018-09-27 |
Foreign References:
| JPS6351453A | 1988-03-04 | |||
| JP2015093912A | 2015-05-18 |
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
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